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GBZ43963-2024: Guidance for determination of clearances, creepage distances and requirements for solid insulation for equipment with a rated voltage above 1 000 V AC and 1 500 V DC, and up to 2 000 V AC and 3 000 V DC.
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Guidance for determination of clearances, creepage distances and requirements for solid insulation for equipment with a rated voltage above 1 000 V AC and 1 500 V DC, and up to 2 000 V AC and 3 000 V DC.
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GB/Z 43963-2024
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Basic data | Standard ID | GB/Z 43963-2024 (GB/Z43963-2024) | | Description (Translated English) | Guidance for determination of clearances, creepage distances and requirements for solid insulation for equipment with a rated voltage above 1 000 V AC and 1 500 V DC, and up to 2 000 V AC and 3 000 V DC. | | Sector / Industry | National Standard | | Classification of Chinese Standard | K30 | | Classification of International Standard | 29.080.30 | | Word Count Estimation | 26,291 | | Date of Issue | 2024-04-25 | | Date of Implementation | 2024-11-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GBZ43963-2024: Guidance for determination of clearances, creepage distances and requirements for solid insulation for equipment with a rated voltage above 1 000 V AC and 1 500 V DC, and up to 2 000 V AC and 3 000 V DC.
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
GB /Z 43963-2024: Guidelines for determining the values of electrical clearances and creepage distances and solid insulation requirements for equipment with rated voltages above 1000 V to:2000 V for AC and above 1500 V to 3000 V for DC
ICS 29:080:30
CCSK30
Guiding technical documents of the People's Republic of China on national standardization
Make sure the rated voltage is above AC 1000V:
2000V, DC 1500V and above to 3000V
The values of electrical clearance and creepage distance between devices
and guidance on solid insulation requirements
(IEC TS62993:2017, IDT)
Published on April 25, 2024, implemented on November 1, 2024
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 Basic information for determining insulation requirements 5
5 Rules for determining size 8
6 Tests and measurements 13
References 19
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents"
Drafting:
This document is equivalent to IEC TS62993:2017 "Determination of rated voltage above 1000V AC to:2000V, DC 1500V
Guide to the values of electrical clearances and creepage distances for equipment between 3000V and above and to the requirements for solid insulation:
The technical specifications are adjusted to become guiding technical documents for national standardization in my country:
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document was proposed by the China Electrical Equipment Industry Association:
This document is under the jurisdiction of the National Technical Committee for Standardization of Insulation Coordination of Low Voltage Equipment (SAC/TC417):
This document was drafted by: Delixi Electric Co:, Ltd:, Shanghai Electric Science Research Institute, Changshu Switch Manufacturing Co:, Ltd: (formerly Changshu Switch
Factory), Shanghai Noyak Electric Co:, Ltd:, Shanghai Siemens Line Protection System Co:, Ltd:, Shanghai Liangxin Electric Co:, Ltd:, Hangzhou
Zhijiang Switch Co:, Ltd:, Qingdao Dingxin Communication Co:, Ltd:, Xiamen Hongfa Switchgear Co:, Ltd:, Shanghai Siyuan Low Voltage Switch
Co:, Ltd:, WAGO Electronics (Tianjin) Co:, Ltd:, Shanghai Tianyi Electric Co:, Ltd:, Eaton Electric Co:, Ltd:, Shanghai Anyi Enterprise Development
Co:, Ltd:, Zhejiang Benyi New Energy Co:, Ltd:, Hangzhou Shenfa Electric Co:, Ltd:, Great Wall Electric Group Zhejiang Technology Co:, Ltd:,
Phoenix Asia Pacific Electrical (Nanjing) Co:, Ltd:, Guangdong Mingyang Electric Co:, Ltd:, Shenzhen Mofulong Technology Co:, Ltd:, Hangzhou Electric
Yuhang Qunli Complete Electrical Manufacturing Branch of Li Equipment Manufacturing Co:, Ltd: and Guizhou Taiyong Changzheng Technology Co:, Ltd:
The main drafters of this document are: Wu Jianbin, Chen Xueqin, Bao Ge, Zhou Jianxing, Ge Weijun, Hu Jinli, Yu Yipeng, Dai Shuidong, Hou Jushang,
Zhang Xieli, Cao Lin, Wang Fang, Chen Baisheng, Wang Xingyang, Zhu Xiaoge, Wu Renzheng, Zhang Jianjiang, Bao Ding, Wang Huajiang, Sun Wenyi, Li Xiangping, Liu Yi,
Zhang Zhiyu:
Introduction
This document provides a smooth transition from low voltage (not exceeding 1000 V ac and 1500 V dc) as specified in IEC 60664 (all parts):
The additional insulation coordination for the transition to high voltage (IEC 60071-1 gives a range greater than 1000V, but the regulations given all start from 3600V)
The IEC 60071-1 standard does not contain provisions for personal safety requirements, and IEC 60071-1 does not provide creepage distance values:
Because many standard committees require the voltage range of AC 1000V to:2000V and DC 1500V to 3000V to be given:
This document is specially formulated to determine the electrical clearances, creepage distances and solid insulation methods for equipment within the enclosure:
This document does not intend to extend the upper limit of the low voltage range, which remains not more than 1000 V AC and 1500 V DC:
Make sure the rated voltage is above AC 1000V:
2000V, DC 1500V and above to 3000V
The values of electrical clearance and creepage distance between devices
and guidance on solid insulation requirements
1 Scope
This document is a technical specification that provides technical committees with the criteria for determining rated voltages from 1000V to:2000V AC and 1500V DC:
Insulation coordination guide for equipment with rated voltage not exceeding 1000 V AC and 1500 V DC, and with higher
For insulation coordination equipment with a voltage of 100 V or lower internal voltage, see IEC 60664-1 for relevant requirements:
This document applies to equipment at altitudes up to:2000m and provides guidance for use at higher altitudes:
This document specifies the electrical clearances, creepage distances and solid insulation guidelines for equipment to meet safety requirements, including relevant electrical tests
method:
NOTE: Since functional insulation requirements are not safety requirements, no corresponding provisions are made:
This document does not deal with the determination of the following distances:
---Insulation by liquid;
--- Passing gases other than air;
---By compressed air:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
GB/T 2423:2-2008 Environmental testing for electric and electronic products Part 2: Test methods Test B: High temperature (IEC 60068-2-2:
2007, IDT)
GB/T 2423:3-2016 Environmental testing Part 2: Test method Test Cab: Steady state damp heat test (IEC 60068-2-78:
2012, IDT)
GB/T 2423:22-2012 Environmental testing Part 2: Test method Test N: Temperature change (IEC 60068-2-14:
2009, IDT)
GB/T 16935:1-2023 Insulation coordination for equipment in low voltage power supply systems Part 1: Principles, requirements and tests
(IEC 60664-1:2020,IDT)
IEC 60068-2-78 Environmental testing Part 2-78: Test Cab: Steady state damp heat test (Environmenttesting-
Note: GB/T 2423:3-2016 Environmental testing Part 2: Test method Test Cab: Steady state damp heat test (IEC 60068-2-78:2012, IDT)
Note: GB/T 4207-2012 Determination of tracking resistance index and comparative tracking index of solid insulating materials (IEC 60112:2009, IDT)
IEC 61180:2016 High-voltage test technical definitions, test and procedure requirements, test equipment for low-voltage electrical equipment (High-
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